Description
BAK 4S 14.8V 25000mAh (25Ah) 4S5P 3C Lithium-Ion Rechargeable Battery Pack
The BAK 4S 14.8V 25000mAh (25Ah) 4S5P 3C Lithium-Ion Rechargeable Battery Pack is a high-capacity NMC Lithium-Ion battery pack designed for applications requiring reliable 14.8V power and extended operating time.
Built using BAK 3.7V 5000mAh lithium-ion cells, this battery pack uses a 4S5P configuration, providing 14.8V nominal voltage, 25Ah capacity, and approximately 370Wh energy.
With a 3C configuration, the theoretical discharge capability is 75A. Actual continuous discharge capability depends on the selected cells, BMS, wiring, connectors, interconnections and thermal management.
Key Features
- Brand: BAK
- Battery Chemistry: NMC Lithium-Ion
- Configuration: 4S5P
- Nominal Voltage: 14.8V
- Maximum Charging Voltage: 16.8V
- Capacity: 25000mAh (25Ah)
- Cell Capacity: 5000mAh
- Total Cells: 20
- Discharge Rating: 3C
- Theoretical 3C Current: 75A
- Rechargeable Lithium-Ion battery
- High-capacity configuration for longer runtime
- Suitable for portable and industrial applications
- Custom BMS, wiring and connectors available
4S5P Battery Configuration
The pack contains 20 cells arranged as:
- 4 cells in series (4S) → 14.8V nominal
- 5 cells in parallel (5P) → 25Ah capacity
- Total cells: 4 × 5 = 20 cells
- Nominal energy: 14.8V × 25Ah = 370Wh
- Maximum charging voltage: 4.2V × 4 = 16.8V
3C Lithium-Ion Configuration
The theoretical 3C discharge current is:
25Ah × 3C = 75A
The actual usable continuous current should be determined by the complete battery design, including the BMS rating, cell specifications, wiring, connectors, interconnections and thermal conditions.
BMS Protection
A suitable BMS can provide protection against:
- Overcharge
- Over-discharge
- Over-current
- Short circuit
- Cell imbalance
- Excessive temperature
- Abnormal charging and discharging conditions
The BMS current rating should be selected according to the actual load requirements.
Applications
The BAK 4S5P 14.8V 25Ah battery pack can be used for:
- Portable Power Equipment
- Robotics
- RC Projects
- Electric Mobility Projects
- Small EV Applications
- Backup Power Systems
- DC Power Equipment
- Industrial Electronics
- Custom Battery Projects
- OEM Battery Applications
Advantages
- 25Ah high-capacity battery
- 14.8V nominal voltage
- Approximately 370Wh energy
- 4S5P cell configuration
- 3C discharge configuration
- Rechargeable NMC Lithium-Ion technology
- Extended operating time
- Custom BMS options available
- Custom connectors and wiring available
- Suitable for OEM and bulk requirements
Package Includes
- 1 × BAK 4S5P 14.8V 25000mAh Lithium-Ion Battery Pack
- BMS – according to selected configuration
- Connector and wiring – according to selected configuration
